549 citations
- Carl von Ossietzky Universität OldenburgDE7 papers
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- Jet Propulsion LaboratoryUS3 papers
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- Observatoire de la Côte d’AzurFR3 papers
- Office National d'Études et de Recherches AérospatialesFR3 papers
- Staats- und Universitätsbibliothek BremenDE3 papers
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math.CO2009
Equivariant closure operators and trisp closure maps
Juliane Lehmann
A trisp closure map is a special map on the vertices of a trisp T with the property that T collapses onto the subtrisp induced by the image of the map. We study the interaction bet…
math.CO2007
Nested set complexes for posets and the Bier construction
Juliane Lehmann
We generalize the concept of combinatorial nested set complexes to posets and exhibit the topological relationship between the arising nested set complexes and the order complex of…